Basic Chemistry of Bio-Based Resin Production at Kemwerke
The general formulation of Coconut based Polyol Resin ( CBPR ) involves achieving reaction with a Saturated Coconut Fatty acid, Phthalic Anhydride, and one or more Polyalcohol Components which then undergoes esterification, polymerization. polycondensation reaction, in the presence of catalyst/inhibitors, and finally modified to enhance its film properties.
Natural Oil Polyols (NOP)
A new class of polyols, called natural oil polyols (NOPs) or biopolyols, refer to polyester polyols derived from plant-based oils that are primarily used in the production of polyurethanes. Kemwerke presents its NOP-class polyol resin derived from the coconut oil, hence called Coconut Based Polyol Resin.( CBPR )
Properties
Kemwerke’s CBPR offers initial high-gloss retention, and non-yellowing characteristics of coconut oil, and demonstrates natural salt-water resistance and weatherability properties. Thus it makes a good proponent for metal surface protection and corrosion control.
Downstream Applications
Polyol resins or polyols is a popular industrial feedstock for the coatings industry, especially in the production of polyurethanes or polyurethane systems. Such polyurethanes are conventionally made by reacting polyols resins with isocyanates. Kemwerkes CBPR reacts well with isocynates, making it viable and attractive alternative to petroleum-based polyols without compromising performance.